use strict;
use warnings;
-use Moose::Meta::Class;
-use metaclass 'Moose::Meta::Class';
+use Devel::GlobalDestruction qw(in_global_destruction);
+use MRO::Compat;
+use Scalar::Util;
-use Carp 'confess';
+use if ( not our $__mx_is_compiled ), 'Moose::Meta::Class';
+use if ( not our $__mx_is_compiled ), metaclass => 'Moose::Meta::Class';
-our $VERSION = '0.06';
+our $VERSION = '0.79';
+$VERSION = eval $VERSION;
+our $AUTHORITY = 'cpan:STEVAN';
sub new {
my $class = shift;
- my %params;
- if (scalar @_ == 1) {
- (ref($_[0]) eq 'HASH')
- || confess "Single parameters to new() must be a HASH ref";
- %params = %{$_[0]};
+
+ my $params = $class->BUILDARGS(@_);
+
+ # We want to support passing $self->new, but initialize
+ # takes only an unblessed class name
+ my $real_class = Scalar::Util::blessed($class) || $class;
+ my $self = Class::MOP::Class->initialize($real_class)->new_object($params);
+
+ $self->BUILDALL($params);
+
+ return $self;
+}
+
+sub BUILDARGS {
+ my $class = shift;
+ if ( scalar @_ == 1 ) {
+ unless ( defined $_[0] && ref $_[0] eq 'HASH' ) {
+ Class::MOP::class_of($class)->throw_error(
+ "Single parameters to new() must be a HASH ref",
+ data => $_[0] );
+ }
+ return { %{ $_[0] } };
}
else {
- %params = @_;
+ return {@_};
}
- my $self = $class->meta->new_object(%params);
- $self->BUILDALL(\%params);
- return $self;
}
sub BUILDALL {
- my ($self, $params) = @_;
- foreach my $method (reverse $self->meta->find_all_methods_by_name('BUILD')) {
- $method->{code}->($self, $params);
- }
+ # NOTE: we ask Perl if we even
+ # need to do this first, to avoid
+ # extra meta level calls
+ return unless $_[0]->can('BUILD');
+ my ($self, $params) = @_;
+ foreach my $method (reverse Class::MOP::class_of($self)->find_all_methods_by_name('BUILD')) {
+ $method->{code}->execute($self, $params);
+ }
}
sub DEMOLISHALL {
- my $self = shift;
- foreach my $method ($self->meta->find_all_methods_by_name('DEMOLISH')) {
- $method->{code}->($self);
- }
+ my $self = shift;
+ my ($in_global_destruction) = @_;
+
+ # NOTE: we ask Perl if we even
+ # need to do this first, to avoid
+ # extra meta level calls
+ return unless $self->can('DEMOLISH');
+
+ my @isa;
+ if ( my $meta = Class::MOP::class_of($self ) ) {
+ @isa = $meta->linearized_isa;
+ } else {
+ # We cannot count on being able to retrieve a previously made
+ # metaclass, _or_ being able to make a new one during global
+ # destruction. However, we should still be able to use mro at
+ # that time (at least tests suggest so ;)
+ my $class_name = ref $self;
+ @isa = @{ mro::get_linear_isa($class_name) }
+ }
+
+ foreach my $class (@isa) {
+ no strict 'refs';
+ my $demolish = *{"${class}::DEMOLISH"}{CODE};
+ $self->$demolish($in_global_destruction)
+ if defined $demolish;
+ }
+}
+
+sub DESTROY {
+ # if we have an exception here ...
+ if ($@) {
+ # localize the $@ ...
+ local $@;
+ # run DEMOLISHALL ourselves, ...
+ $_[0]->DEMOLISHALL(in_global_destruction);
+ # and return ...
+ return;
+ }
+ # otherwise it is normal destruction
+ $_[0]->DEMOLISHALL(in_global_destruction);
}
-sub DESTROY { goto &DEMOLISHALL }
+# support for UNIVERSAL::DOES ...
+BEGIN {
+ my $does = UNIVERSAL->can("DOES") ? "SUPER::DOES" : "isa";
+ eval 'sub DOES {
+ my ( $self, $class_or_role_name ) = @_;
+ return $self->'.$does.'($class_or_role_name)
+ || $self->does($class_or_role_name);
+ }';
+}
-# new does() methods will be created
-# as approiate see Moose::Meta::Role
+# new does() methods will be created
+# as appropiate see Moose::Meta::Role
sub does {
my ($self, $role_name) = @_;
+ my $meta = Class::MOP::class_of($self);
(defined $role_name)
- || confess "You much supply a role name to does()";
- my $meta = $self->meta;
+ || $meta->throw_error("You much supply a role name to does()");
foreach my $class ($meta->class_precedence_list) {
- return 1
- if $meta->initialize($class)->does_role($role_name);
+ my $m = $meta->initialize($class);
+ return 1
+ if $m->can('does_role') && $m->does_role($role_name);
}
- return 0;
+ return 0;
+}
+
+sub dump {
+ my $self = shift;
+ require Data::Dumper;
+ local $Data::Dumper::Maxdepth = shift if @_;
+ Data::Dumper::Dumper $self;
}
1;
=head1 DESCRIPTION
-This serves as the base object for all Moose classes. Every
-effort will be made to ensure that all classes which C<use Moose>
-will inherit from this class. It provides a default constructor
-and destructor, which run all the BUILD and DEMOLISH methods in
-the class tree.
+This class is the default base class for all Moose-using classes. When
+you C<use Moose> in this class, your class will inherit from this
+class.
+
+It provides a default constructor and destructor, which run the
+C<BUILDALL> and C<DEMOLISHALL> methods respectively.
-You don't actually I<need> to inherit from this in order to
-use Moose though. It is just here to make life easier.
+You don't actually I<need> to inherit from this in order to use Moose,
+but it makes it easier to take advantage of all of Moose's features.
=head1 METHODS
=over 4
-=item B<meta>
+=item B<< Moose::Object->new(%params) >>
+
+This method calls C<< $class->BUILDARGS(@_) >>, and then creates a new
+instance of the appropriate class. Once the instance is created, it
+calls C<< $instance->BUILDALL($params) >>.
+
+=item B<< Moose::Object->BUILDARGS(%params) >>
+
+The default implementation of this method accepts a hash or hash
+reference of named parameters. If it receives a single argument that
+I<isn't> a hash reference it throws an error.
+
+You can override this method in your class to handle other types of
+options passed to the constructor.
+
+This method should always return a hash reference of named options.
+
+=item B<< $object->BUILDALL($params) >>
+
+This method will call every C<BUILD> method in the inheritance
+hierarchy, starting with the most distant parent class and ending with
+the object's class.
+
+The C<BUILD> method will be passed the hash reference returned by
+C<BUILDARGS>.
+
+=item B<< $object->DEMOLISHALL >>
+
+This will call every C<DEMOLISH> method in the inheritance hierarchy,
+starting with the object's class and ending with the most distant
+parent. C<DEMOLISHALL> and C<DEMOLISH> will receive a boolean
+indicating whether or not we are currently in global destruction.
-This will return the metaclass associated with the given class.
+=item B<< $object->does($role_name) >>
-=item B<new>
+This returns true if the object does the given role.
-This will create a new instance and call C<BUILDALL>.
+=item B<DOES ($class_or_role_name)>
-=item B<BUILDALL>
+This is a a Moose role-aware implementation of L<UNIVERSAL/DOES>.
-This will call every C<BUILD> method in the inheritance hierarchy,
-and pass it a hash-ref of the the C<%params> passed to C<new>.
+This is effectively the same as writing:
-=item B<DEMOLISHALL>
+ $object->does($name) || $object->isa($name)
-This will call every C<DEMOLISH> method in the inheritance hierarchy.
+This method will work with Perl 5.8, which did not implement
+C<UNIVERSAL::DOES>.
-=item B<does ($role_name)>
+=item B<< $object->dump($maxdepth) >>
-This will check if the invocant's class C<does> a given C<$role_name>.
-This is similar to C<isa> for object, but it checks the roles instead.
+This is a handy utility for C<Data::Dumper>ing an object. By default,
+the maximum depth is 1, to avoid making a mess.
=back
=head1 BUGS
-All complex software has bugs lurking in it, and this module is no
+All complex software has bugs lurking in it, and this module is no
exception. If you find a bug please either email me, or add the bug
to cpan-RT.
=head1 COPYRIGHT AND LICENSE
-Copyright 2006 by Infinity Interactive, Inc.
+Copyright 2006-2009 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself.
+it under the same terms as Perl itself.
-=cut
\ No newline at end of file
+=cut
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